After President Donald Trump last week repeated the false claim that massive voter fraud kept him fromwinning the popular vote in November, his senior adviser Stephen Miller on Sunday attempted to defend the statement without providing any evidence.

Its very real, its very serious, he said on ABC News This Week.

Host George Stephanopoulos repeatedly pressed Miller to back up his claim, but Miller wouldnt.

We can talk about it more in the future, Miller said.The reality is, we know for a fact, you have massive numbers of noncitizens registered to vote in this country. Nobody disputes that.

Im prepared to go on any show, anywhere, any time and repeat it and say the president of the United States is correct, 100 percent, he said.

Stephanopoulos ended the segment after several more minutes of Miller falsely asserting that voter fraud is a fact.

You have provided zero evidence of the presidents claim that he would have won the popular vote if 3 to 5 million illegal immigrants hadnt voted, zero evidence for either one of those claims, Stephanopoulos said. Thanks a lot for joining us this morning.

Trump and his advisers continue to claim without evidence that millions of people voted illegally. The president even promised a major investigation into the matter, but has yet to launch one.

Trump reportedly brought up voter fraud on Thursday while meeting with a group of senators to discuss his Supreme Court nominee, Neil Gorsuch. He insisted that former Sen. Kelly Ayotte (R-N.H.), who is helping Gorsuch with his confirmation process, would have won re-election and that he would have won New Hampshireif there hadnt been voter fraud.

Fergus Cullen, the states former GOP chairman, called Millers claim that residents from neighboring states rode buses to vote in New Hampshire delusional.

And Tom Rath, former New Hampshire attorney general and GOP delegate, tweeted that the baseless claims were shameful.

This was at least the second time Trump has reportedly mentioned the false claim during a meeting with lawmakers on Capitol Hill. Just days after his inauguration in January, he told congressional leaders that 3 million to 5 million illegals voted for his Democratic opponent,Hillary Clinton.